static int gl520_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct gl520_data *data;
int err;
data = kzalloc(sizeof(struct gl520_data), GFP_KERNEL);
if (!data) {
err = -ENOMEM;
goto exit;
}
i2c_set_clientdata(client, data);
mutex_init(&data->update_lock);
/* */
gl520_init_client(client);
/* */
err = sysfs_create_group(&client->dev.kobj, &gl520_group);
if (err)
goto exit_free;
if (data->two_temps)
err = sysfs_create_group(&client->dev.kobj, &gl520_group_temp2);
else
err = sysfs_create_group(&client->dev.kobj, &gl520_group_in4);
if (err)
goto exit_remove_files;
data->hwmon_dev = hwmon_device_register(&client->dev);
if (IS_ERR(data->hwmon_dev)) {
err = PTR_ERR(data->hwmon_dev);
goto exit_remove_files;
}
return 0;
exit_remove_files:
sysfs_remove_group(&client->dev.kobj, &gl520_group);
sysfs_remove_group(&client->dev.kobj, &gl520_group_in4);
sysfs_remove_group(&client->dev.kobj, &gl520_group_temp2);
exit_free:
kfree(data);
exit:
return err;
}
static int gl520_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct gl520_data *data;
int err;
data = devm_kzalloc(&client->dev, sizeof(struct gl520_data),
GFP_KERNEL);
if (!data)
return -ENOMEM;
i2c_set_clientdata(client, data);
mutex_init(&data->update_lock);
/* Initialize the GL520SM chip */
gl520_init_client(client);
/* Register sysfs hooks */
err = sysfs_create_group(&client->dev.kobj, &gl520_group);
if (err)
return err;
if (data->two_temps)
err = sysfs_create_group(&client->dev.kobj, &gl520_group_temp2);
else
err = sysfs_create_group(&client->dev.kobj, &gl520_group_in4);
if (err)
goto exit_remove_files;
data->hwmon_dev = hwmon_device_register(&client->dev);
if (IS_ERR(data->hwmon_dev)) {
err = PTR_ERR(data->hwmon_dev);
goto exit_remove_files;
}
return 0;
exit_remove_files:
sysfs_remove_group(&client->dev.kobj, &gl520_group);
sysfs_remove_group(&client->dev.kobj, &gl520_group_in4);
sysfs_remove_group(&client->dev.kobj, &gl520_group_temp2);
return err;
}
static int gl520_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct gl520_data *data;
int err;
data = kzalloc(sizeof(struct gl520_data), GFP_KERNEL);
if (!data) {
err = -ENOMEM;
goto exit;
}
i2c_set_clientdata(client, data);
mutex_init(&data->update_lock);
/* Initialize the GL520SM chip */
gl520_init_client(client);
/* Register sysfs hooks */
if ((err = sysfs_create_group(&client->dev.kobj, &gl520_group)))
goto exit_free;
if (data->two_temps) {
if ((err = device_create_file(&client->dev,
&sensor_dev_attr_temp2_input.dev_attr))
|| (err = device_create_file(&client->dev,
&sensor_dev_attr_temp2_max.dev_attr))
|| (err = device_create_file(&client->dev,
&sensor_dev_attr_temp2_max_hyst.dev_attr))
|| (err = device_create_file(&client->dev,
&sensor_dev_attr_temp2_alarm.dev_attr))
|| (err = device_create_file(&client->dev,
&sensor_dev_attr_temp2_beep.dev_attr)))
goto exit_remove_files;
} else {
if ((err = device_create_file(&client->dev,
&sensor_dev_attr_in4_input.dev_attr))
|| (err = device_create_file(&client->dev,
&sensor_dev_attr_in4_min.dev_attr))
|| (err = device_create_file(&client->dev,
&sensor_dev_attr_in4_max.dev_attr))
|| (err = device_create_file(&client->dev,
&sensor_dev_attr_in4_alarm.dev_attr))
|| (err = device_create_file(&client->dev,
&sensor_dev_attr_in4_beep.dev_attr)))
goto exit_remove_files;
}
data->hwmon_dev = hwmon_device_register(&client->dev);
if (IS_ERR(data->hwmon_dev)) {
err = PTR_ERR(data->hwmon_dev);
goto exit_remove_files;
}
return 0;
exit_remove_files:
sysfs_remove_group(&client->dev.kobj, &gl520_group);
sysfs_remove_group(&client->dev.kobj, &gl520_group_opt);
exit_free:
kfree(data);
exit:
return err;
}
static int gl520_detect(struct i2c_adapter *adapter, int address,
unsigned short flags, int kind)
{
int i;
struct i2c_client *new_client;
struct gl520_data *data;
int err = 0;
const char *type_name = "";
char client_name[32];
/* Make sure we aren't probing the ISA bus!! This is just a safety check
at this moment; i2c_detect really won't call us. */
#ifdef DEBUG
if (i2c_is_isa_adapter(adapter)) {
printk
("gl520sm.o: gl520_detect called for an ISA bus adapter?!?\n");
return 0;
}
#endif
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA |
I2C_FUNC_SMBUS_WORD_DATA))
goto ERROR0;
/* OK. For now, we presume we have a valid client. We now create the
client structure, even though we cannot fill it completely yet.
But it allows us to access gl520_{read,write}_value. */
if (!(new_client = kmalloc(sizeof(struct i2c_client) +
sizeof(struct gl520_data),
GFP_KERNEL))) {
err = -ENOMEM;
goto ERROR0;
}
data = (struct gl520_data *) (new_client + 1);
new_client->addr = address;
new_client->data = data;
new_client->adapter = adapter;
new_client->driver = &gl520_driver;
new_client->flags = 0;
/* Determine the chip type. */
if (gl520_read_value(new_client, GL520_REG_CHIP_ID) != 0x20) {
printk
("gl520sm.o: Ignoring 'force' parameter for unknown chip at "
"adapter %d, address 0x%02x\n",
i2c_adapter_id(adapter), address);
goto ERROR1;
} else {
kind = gl520sm;
}
i = gl520_read_value(new_client, GL520_REG_REVISION);
if (kind == gl520sm) {
type_name = "gl520sm";
sprintf(client_name, "GL520SM Revision %02x chip", i);
} else {
#ifdef DEBUG
printk("gl520sm.o: Internal error: unknown kind (%d)?!?",
kind);
#endif
goto ERROR1;
}
/* Fill in the remaining client fields and put it into the global list */
strcpy(new_client->name, client_name);
data->type = kind;
new_client->id = gl520_id++;
data->valid = 0;
init_MUTEX(&data->update_lock);
/* Tell the I2C layer a new client has arrived */
if ((err = i2c_attach_client(new_client)))
goto ERROR3;
/* Register a new directory entry with module sensors */
if ((i = i2c_register_entry(new_client,
type_name,
gl520_dir_table_template,
THIS_MODULE)) < 0) {
err = i;
goto ERROR4;
}
data->sysctl_id = i;
/* Initialize the GL520SM chip */
data->two_temps = 1;
data->alarm_mask = 0xff;
gl520_init_client(new_client);
return 0;
/* OK, this is not exactly good programming practice, usually. But it is
very code-efficient in this case. */
ERROR4:
i2c_detach_client(new_client);
ERROR3:
ERROR1:
kfree(new_client);
ERROR0:
return err;
}